根据短文内容及首字母提示，填写所缺单词，使短文意思完整，每空只填一词。
    Millions of American children attend summer camp. Traditional American summer camps offer young people a c____  to play many sports. These camps may be in the mountains. Or they may be in the woods, or at a lake. O____   camps teach activities like painting or music. Or t____ teach computer programming or foreign languages. Children at all kinds of camps m____  new friends. They learn new skills and develop independence (独立).
    Some children go to camp d____  the day and return home at night. These places are c____  day camps. Children as y____  as four years old attend day camps. Others stay at camp all day and all night. Most children w____  attend overnight camp are between the ages of about six and sixteen.
    Children s____  at an overnight camp for between one and eight weeks. P____  can pay less than one-hundred dollars a week for an overnight camp. Or they can pay more than seven-hundred dollars a week.

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《杨柳枝词》

一树春风千万枝，嫩于金色软于丝。

永丰西角荒园里，尽日无人属阿谁？

岑参《白雪歌送武判官归京》中表现物候因地而异的句子是：____。